No input signal to Win 10 installation?

My dad gave me his old ultrabook Acer Aspire 3 because this has been a display defect for some time.

Just connected to one of my screens and off we went, now I've noticed the win8.1 installed, I then reformatted and win 10 played on it.

When restarting after installation, the screen has no input signal and with all combo Win + P I'm not synonymous. Display I changed as well as cable but same result.

In the BIOS I have tried to come, but I do not think this is visible on the second screen and on the main picture is unfortunately not recognized by the defect (lights up white)

The whole thing is connected via HDMI, VGA does not have the laptop.

Are there any possibilities? I'm running out of ideas, I exclude hardware because yesterday everything ran smoothly on win8.1

There are laptops that do not have drivers for Windows 10.

Otherwise you can still try to enter the BIOS with F2 or Del, then press f10 and enter for standard settings

Thanks for the answer, I'm in the BIOS and I could also confirm (was to recognize that the PC restarted shortly) but unfortunately no improvement.

Cortana has now tried me to help set up by voice control in the selection of the network, but I can't go on and after a restart, she wants to stop talking…

Oh dear - that is of course a bad situation.

Ad hoc would only come to me to screw the laptop and check the monitor cable. Possibly. The screen is not broken but only the cable.
This is easier to replace than the entire panel.
At least you would have a picture again.

Make a BIOS flash after the video by holding the two buttons and power button, and the USB stick with the bios data

Thanks for the answer.

Display frame, I have yesterday removed time and cleaned the cables and re-infected, same result.

I googled and with me the error is a white display what is often s.Cable, is therefore close to that it could be and would be one of the emergency options.

Other possibility that I would have considered a remote desktop because I can't install a client on the target computer, I think that will not bring much.